233rd Meeting of the American Astronomical Society, Seattle, WA
Wednesday, 9 January 2019, 10:15 am PST
Welcome
Kerrin Hensley (AAS Media Fellow)
Early Science Results on Fast Radio Bursts from CHIME
Vicky Kaspi (McGill Univ.) & Deborah Good (Univ. of British Columbia)
A Study of Radio Pulses from the Galactic Center Magnetar
Aaron Pearlman (Caltech)
Mapping the Contracting Corona in a New Black Hole Transient with NICER
Erin Kara (Univ. of Maryland)
Q&A

New space discovery has astronomers buzzing

Newly-discovered repeating waves from deep space have led some experts to question whether aliens are out there.
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Fast Radio Bursts, or FRBs are blasts of radio energy that hit Earth from outside the milky way galaxy, lasting only milliseconds before they disappear. Dr. Avi Loeb of Harvard University and Harvard Smithsonian Center for Astrophysics discusses the possibility that they could be leakage from highly powerful lasers pushing on light sails or other signs of advanced extraterrestrial intelligence. As well as the interstellar object known as Oumuamua and if it is a solar sail or alien probe. Avi Loeb also discusses what are the most dangerous and immediate threats to life on earth from space, asteroid collisions, solar flares including the carrington event, and black holes.
"COULD SOLAR RADIATION PRESSURE EXPLAIN ‘OUMUAMUA’S PECULIAR ACCELERATION?", Bialy and Loeb, 2018
https://arxiv.org/pdf/1810.11490.pdf
7 explanations for why mysterious radio bursts are coming from space:
https://www.newscientist.com/article/2183047-7-explanations-for-why-mysterious-radio-bursts-are-coming-from-space/
Is 'Oumuamua a Light Sail? Featuring Dr. Avi Loeb: https://youtu.be/VlpVIyBCG3s
Why The Universe May Be Full Of Alien Civilizations Featuring Dr. Avi Loeb: https://youtu.be/6ckgBxRASTo
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We talk to SKA Project Scientist Evan Keane about the significance of the discovery of 20 new Fast Radio Bursts - doubling the known number of these mysterious objects - by ASKAP, one of the SKA precursor telescopes in Australia.
To find out more, visit http://www.skatelescope.org/news/askap-fast-radio-bursts-discovery/

A Telescope In Australia Has Spotted 20 Mysterious 'Fast Radio Bursts'

Scientists using a Western Australian radio telescope say they’ve significantly increased their detections of fast radio bursts.

AI Detects Mysterious Cosmic Radio Bursts

Researchers used machine learning to discover 72 new fast radio bursts from a mysterious source 3 billion light years from Earth.
Geek.com reports that in radio astronomy, fast radio bursts are high-energy astrophysical phenomenon of unknown origin; the bright pulses of radio emission last mere milliseconds and are thought to originate from distant galaxies.
Their source, however, remains unclear.
But Breakthrough Listen, a SETI project led by the University of California, Berkeley, hopes AI can help clarify.
according to Andrew Siemion, director of the Berkeley SETI Research Center and principal investigator of Breakthrough Listen, “This work is exciting not just because it helps us understand the dynamic behavior of fast radio bursts in more detail, but also because of the promise it shows for using machine learning to detect signals missed by classical algorithms."
https://www.geek.com/tech/ai-detects-more-mysterious-cosmic-radio-bursts-1751925/?source
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Breakthrough Listen uses machine learning to find fast radio bursts

Machine learning algorithms applied to Listen data from the Green Bank Telescope found new pulses from the mysterious repeating source FRB 121102. These new bursts were missed by conventional search methods, and are helping to answer questions about the origin of FRB 121102. Machine learning algorithms are also being applied to help Listen search for new kinds of candidate signals from extraterrestrial intelligence.
For more information, see http://seti.berkeley.edu/frb-machine/
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The Real Reality Show: What Are Fast Radio Bursts?

There’s a weird thing happening in the universe, and astronomers call it a fast radio burst. Learn about these high energy mysteries and what might cause them.
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Astronomy.com features daily news and weekly observing tips, as well as our Picture of the Day. We also invite you to check out our blogs, podcasts, and more.
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Vicky Kaspi : Fast Radio Bursts

Fast Radio Bursts
Vicky Kaspi
CIFAR Fellow, Cosmology & Gravity program; McGill University,
Department of Physics & McGill Space Institute
This lecture was part of the "Untangling the Cosmos" symposium hosted by CIFAR in partnership with the Ontario Science Centre on May 17, 2017.

Kaufmanis Lecture: The Newest Extragalactic Mystery

Learn about the new mysterious cosmic phenomenon—Fast Radio Bursts—and the revolutionary new radio telescope that will soon enable astronomers worldwide to make major progress in understanding them. This lecture was presented by the Minnesota Institute for Astrophysics.

Fast Radio Bursts are millisecond-duration pulses of unknown origin that were discovered by astronomers in 2007. A decade later, with only two dozen bursts known, Fast Radio Bursts remain enigmatic sources which parallel the early days of gamma-ray burst astronomy in the 1970s. Professor Lorimer tells the story of Fast Radio Bursts’ discovery, summarize what we know so far, describe the science opportunities these bursts present, and make predictions for what we will learn in the next decade.

Fast Radio Bursts Probably Aren’t Aliens, BUT We Haven’t Ruled It Out

Check out: To Boldly Go Where No Dog Has Gone Before https://youtu.be/Edx7TZZVi5I
Scientists have taken a closer look at the source of those mysterious fast radio bursts you’ve heard about, and they have some new theories.
An Interstellar Asteroid Just Flew Past Earth, Here’s What You Need to Know - https://youtu.be/2tA3w-aiNt8
Read More:
Astronomers Find a Spectacular Source For Those Mysterious Repeating Space Signals
http://www.sciencealert.com/frb-121102-fast-radio-burst-massive-black-hole-nebula-icrar
“Fast radio bursts (FRBs) are one of our Universe's most confounding mysteries - but astronomers may have just figured out the incredible environment where one of the most famous and well-studied FRBs is coming from.”
Not So Fast: Mystery Radio Bursts Far From Solved
https://www.seeker.com/not-so-fast-mystery-radio-bursts-far-from-solved-1770977246.html
“Evan Keane, a project scientist at the Square Kilometer Array Organization, and colleagues authored the original paper that claims to narrow down the source location of an FRB by tracing what they interpreted as the afterglow of whatever caused the FRB. But another group, led by Peter Williams, a postdoctoral astronomer at the Harvard-Smithsonian Center for Astrophysics, claims it could just be the belches of a monster black hole.”
Mystery Fast Radio Burst Caused By Flashing Black Hole
https://www.seeker.com/mystery-fast-radio-burst-caused-by-flashing-black-hole-1771172809.html
“These energetic eruptions seem to pop up in random locations in the cosmos and they appear and disappear in a matter of milliseconds, making them exceedingly hard to pinpoint. Until February, only a handful of definitive FRB signals had been uncovered in archival radio data.”
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New clues about mysterious Fast Radio Bursts - SpaceTime with Stuart Gary S21E04

Stream on demand from www.bitesz.com (mobile friendly).
SpaceTime 20180117 Series 21 Episode 04:
*New clues about mysterious Fast Radio Bursts
Astronomers have discovered new clues about mysterious cosmic blasts called Fast Radio Bursts – finding they originate from an environment bathed in extreme magnetic fields. While the new findings don’t shed any fresh light on what causes them – the research has provided some new insights to the deep space environment in which they occur.
*Underground Martian water ice deposits exposed
New images have revealed eight sites on Mars where thick subsurface deposits of water ice have been exposed on the cliff faces of eroding slopes. As well as holding clues about the red planet’s climate history – the findings also show how frozen water may be far more accessible for future missions to Mars than previously thought.
*The universe has far more massive stars than expected
Astronomers have discovered an excess of massive stars being formed in a giant stellar nursery in our neighbouring galaxy -- the Large Magellanic cloud. The findings are based on observations of 30 Doradus -- the Tarantula nebula –the biggest star-forming region in our part of the universe and host to some of the most massive stars ever found.
*Tabby’s star just dusty
New research has supported earlier studies indicating strange uneven and sporadic variations in the light coming from a distant star is most likely just dust. For the last few years astronomers and the general public have been captivated by the mysterious changes in brightness coming from the star now commonly referred to as Tabby’s Star.
*The Science Report
New figures confirm 2017 was Australia’s third hottest year on record.
A new study warns ibuprofen pain killers can affect male fertility.
The probiotic Lactobacillus reuteri has the potential to provide an effective treatment for colic.
Scientists have finally proved something women have always known – baby brain is real.
Alex on Tech covers CES -- the world’s largest Consumer Electronics Show in Las Vegas.
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Astronomy Cast Ep. 475: Fast Radio Bursts

Join +Fraser Cain and +Pamela Gay for a live episode of Astronomy Cast. We'll record our 30-minute show, and then stay tuned for them to answer questions!
You know what's fun? Mysteries. Here's one: fast radio bursts. Astronomers have been detecting mysterious one-time signals from across the sky. What's causing them? Nobody knows for sure, but the search is on to get to the bottom of them.

https://www.sns.ias.edu/astrophysics/seminars/colloquium/fast-radio-bursts
More videos on http://video.ias.edu

Mysterious Signals Are Coming From Space — No One Knows Why

It started in 2001, a brilliant burst of light breached the skies. The event had released as much power as 500 million suns. Just a few milliseconds later, the signal had vanished. Astronomers call these powerful flashes Fast Radio Bursts (FRBs).
Since 2001, about 30 have been identified. But, new estimates suggest one is happening almost every second. According to Dr. Avi Loeb, professor of science at Harvard University, "In the time it takes you to drink a cup of coffee, hundreds of FRBs may have gone off somewhere in the universe."
The origins of FRBs continue to elude explanation. But there's one source unlike any other that may hold the key to solving the mystery. It's called FRB 121102. It's the only known FRB that repeats. Astronomers have observed over 150 flashes from FRB 121102. Its repeated signals suggest FRBs aren't from a single explosion. Rather, they could be from an unusual object called a magnetar. Magnetars are highly-dense stars with powerful magnetic fields. Whatever the reason, FRBs are proof there's still so much more to learn about our universe.
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CHIME Fast Radio Bursts

In recent years, scientists have discovered fast radio bursts, energetic single pulses of radio emission arriving in random directions from unknown sources well beyond our galaxy, the Milky Way. The origin of these pulses is a major puzzle in high energy astrophysics. With its huge field of view and broad frequency coverage, the CHIME telescope is a nearly ideal instrument for finding and studying many of these bursts, enabling scientists to tackle one of the most mysterious new areas of astrophysics.

BERKELEY, CALIFORNIA — Astronomers last month reported detections of radio bursts from a far away galaxy.
Writing in the Astronomer's Telegram, scientists reported 15 fast radio bursts detected from a dwarf galaxy some 3 billion light years from our own. Scientists suggest the bursts may have come from a magnetar, which is a rotating neutron star with a strong magnetic field.
Researchers also speculate that the bursts may originate from alien laser technology used to propel and power spacecraft, like wind powers sails on a ship, according to a University of California, Berkeley news release. That theory is similar to Breakthrough Starshot, an initiative aimed at propelling nanocraft to Proxima Centauri with Earth-based lasers.
Whatever they came from, researchers say that those signals began travelling from their galaxy over 10 billion years ago, when ours wasn't even 2 billion years old.
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Scientists Detect 15 New Fast Radio Bursts From Distant Galaxy

On Aug. 26, scientists with the Breakthrough Listen initiative detected 15 fast radio bursts originating from a galaxy 3 billion light years away.

Fast Radio Burst 121102 Update For 09/02/17

An update on repeating fast radio burst 121102 which is currently active and could have implications on both SETI and deciphering just what causes FRBs.
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Papers and links:
Breakthrough Listen
https://breakthroughinitiatives.org/News/13
"A Fast Radio Burst Occurs Every Second throughout the Observable Universe", Fialkov and Loeb, 2017
https://arxiv.org/abs/1706.06582
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Repeating radio signals coming from space (CNET News)

Read the CNET News article - http://cnet.co/2wlYnnE
Sign of life? Scientists discover an intriguing fast radio burst in a distant galaxy.
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TeVPA 2017 -- Victoria Kaspi: "Fast Radio Bursts and CHIME"

The 11th talk of TeVPA 2017.
I review our present observational understanding of the mysterious new phenomenon of Fast Radio Bursts -- short (few ms) bursts of radio waves arriving from apparently cosmological distances -- as well as models for what these sources may be. I also describe the CHIME telescope, currently being built in Canada, and how it will impact this interesting puzzle.

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Programme website: http://bbc.in/2qnuor0 If Fast Radio Bursts turn out to be a repeating phenomena, they cannot be explained by one-off events. Profs Duncan Lorimer and Maura McLaughlin discuss what could be responsible.

Fast Radio Bursts -- Nature's Latest Cosmic Mystery

Fast Radio Bursts are millisecond-duration pulses of unknown origin that were discovered by pulsar astronomers in 2007. A decade on from the discovery, with only 20 further bursts currently known, fast radio bursts remain enigmatic sources which parallel the early days of gamma-ray burst astronomy in the early 1970s. I will tell the story of their discovery, summarize what we know about them so far, describe the science opportunities these bursts present, and make predictions for what we will learn in the next decade.
Host: Peter Williams
Speaker: Duncan Lorimer

What Are Fast Radio Bursts? A Big Mystery in Astronomy

Here's a big mystery in astronomy: fast radio bursts. Brief shrieks of radio waves coming from space. What are they? Where do they come from? Astronomers have no idea.
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You might think you’re watching an educational channel, where I explain fascinating concepts in space and astronomy, but that’s not really what’s going on here.
What’s actually happening is that you’re tagging along as I learn more and more about new and cool things happening in the Universe. I dig into them like a badger hiding a cow carcass, and we all get to enjoy the cache of knowledge I uncover.
Okay, that analogy got a little weird. Anyway, my point is. Squirrel!
Fast radio bursts are the new cosmic whatzits confusing and baffling astronomers, and now we get to take a front seat and watch them move through all stages of process of discovery.
Stage 1: A strange new anomaly is discovered that doesn’t fit any current model of the cosmos. For example, strange Boyajian’s Star. You know, that star that probably doesn’t have an alien megastructure orbiting around it, but astronomers can’t rule that out just yet?
Stage 2: Astronomers struggle to find other examples of this thing. They pitch ideas for new missions and scientific instruments. No idea is too crazy, until it’s proven to be too crazy. Examples include dark matter, dark energy, and that idea that we’re living in a
Stage 3: Astronomers develop a model for the thing, find evidence that matches their predictions, and vast majority of the astronomical community comes to a consensus on what this thing is. Like quasars and gamma ray bursts. YouTuber’s make their videos. Textbooks are updated. Balance is restored.
Today we’re going to talk about Fast Radio Bursts. They just moved from Stage 1 to Stage 2. Let’s dig in.
Fast radio bursts, or FRBs, or “Furbys” were first detected in 2007 by the astronomer Duncan Lorimer from West Virginia University.
He was looking through an archive of pulsar observations. Pulsars, of course, are newly formed neutron stars, the remnants left over from supernova explosions. They spin rapidly, blasting out twin beams of radiation. Some can spin hundreds of times a second, so precisely you could set your watch to them.
In this data, Lorimer made a “that’s funny” observation, when he noticed one blast of radio waves that squealed for 5 milliseconds and then it was gone. It didn’t match any other observation or prediction of what should be out there, so astronomers set out to find more of them.
Over the last 10 years, astronomers have found about 25 more examples of Fast Radio Bursts. Each one only lasts a few milliseconds, and then fades away forever. A one time event that can appear anywhere in the sky and only last for a couple milliseconds and never repeats is not an astronomer’s favorite target of study.
Actually, one FRB has been found to repeat, maybe.
The question, of course, is “what are they?”. And the answer, right now is, “astronomers have no idea.”
In fact, until very recently, astronomers weren’t ever certain they were coming from space at all. We’re surrounded by radio signals all the time, so a terrestrial source of fast radio bursts seems totally logical.
About a week ago, astronomers from Australia announced that FRBs are definitely coming from outside the Earth. They used the Molonglo Observatory Synthesis Telescope (or MOST) in Canberra to gather data on a large patch of sky.
Then they sifted through 1,000 terabytes of data and found just 3 fast radio bursts.
Three.
Since MOST is farsighted and can’t perceive any radio signals closer than 10,000 km away, the signals had to be coming outside planet Earth. They were “extraterrestrial” in origin.
Right now, fast radio bursts are infuriating to astronomers. They don’t seem to match up with any other events we can see. They’re not the afterglow of a supernova, or tied in some way to gamma ray bursts.
In order to really figure out what’s going on, astronomers need new tools, and there’s a perfect instrument coming. Astronomers are building a new telescope called the Canadian Hydrogen Intensity Mapping Experiment (or CHIME), which is under construction near the town of Penticton in my own British Columbia.

Three new Fast Radio Bursts discovered - SpaceTime with Stuart Gary S20E28

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*Three new Fast Radio Bursts discovered
Astronomers have used one of Australia’s almost forgotten radio telescopes to discover three new Fast Radio Bursts -- mysterious nanosecond long flashes of energy which have so far defied any explanation. The team made the discovery using the old Molonglo radio telescope 40 kilometres from Canberra.
Astronomers identify purest, most massive brown dwarf
Astronomers have discovered the most massive brown dwarf ever seen. The record breaking object, known as SDSS J0104+1535 has the purest composition of any brown dwarf ever observed.
Event Horizon telescope deployed to study black holes
Astronomers have deployed a powerful array of telescopes to undertake the first ever detailed image of the black hole at the centre of our galaxy. The Event Horizon Telescope is an international joint effort to link some of the world’s most powerful radio telescopes to examine Sagittarius A Star -- a supermassive black hole some 4.3 million times the mass of our Sun – located some 27 thousand light years away – in the galactic centre.
New Horizons already halfway from Pluto to its next target
Nasa’s New Horizons spacecraft is now halfway from its close encounter with Pluto to its flyby of Kuiper Belt object 2014 MU69. The probe will encounter the distant world on January 1st 2019.
Biggest wave ever recorded
The World Meteorological Organization have announced confirmation of the biggest wave ever detected – measuring some 19 metres or 62.3 feet tall as tall as a six story building. The record breaking wave formed in the North Atlantic Ocean between the United Kingdom and Iceland.
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Mysterious radio bursts might power alien ships

No one's sure what fast radio bursts are, so some Harvard scientists asked: Why not aliens?
Learn more about this story at www.newsy.com/67725/
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Evidence of Alien Technology? Fast Radio Bursts update for 03/10/17

An update in my continuing coverage of Fast Radio Bursts, or FRBs, one of the strangest phenomena in the universe.
https://arxiv.org/abs/1701.01109
https://www.youtube.com/watch?v=0S4uWOBNR8w
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Are Mysterious Fast Radio Bursts Propelling Alien Spacecraft?

The feasibility of a gigantic radio transmitter beaming Fast Radio Burst (FRB) signals across the cosmos has been studied. Could these signals be propelling Alien spacecraft? - Read the full story: https://goo.gl/9sxj9b
Credit: Space.com / Produced and Edited by @SteveSpaleta http://www.twitter.com/stevespaleta

Mysterious Radio Bursts Could Be Work Of Aliens

New research out of Harvard is speculating that a “mysterious phenomena called fast radio bursts could be evidence of advanced alien technology.”

Stream Episodes on demand from www.bitesz.com or www.spacetimewithstuartgary.com (both mobile friendly)
*Mysterious Fast Radio Bursts linked to a distant dwarf galaxy and maybe a Magnetar
Astronomers are a step closer to finally determining what mysterious powerful energy blasts known as Fast Radio Bursts are. They’ve narrowed down a likely source to a distant ancient dwarf galaxy some three billion light years away – and possibly to a highly magnetic type of neutron star known as a magnetar.
*Two new missions to explore early solar system
NASA has selected two missions designed to open new windows on one of the earliest eras in the history of our solar system -- a time less than 10 million years after the birth of the Sun. The missions, known as Lucy and Psyche will fly in 2021 and 2013 respectively.
*Two more Near Earth objects discovered
NASA's NEOWISE mission has discovered another two previously unknown Near Earth Objects or NEOs heading for our celestial neighbourhood, including one that further blurs the line between asteroids and comets. One is an object called 2016 WF9 in an orbit that takes it on a scenic tour of our solar system, while the other is a new comet named C/2016 U1 NEOWISE which has a good chance of becoming visible through binoculars.
*Dark Matter pioneer astronomer Vera Rubin dies at 88
One of the great pioneers of Dark Matter – astronomer Vera Rubin has passed away aged 88. Rubin’s pioneering research measuring galactic rotation curves proved there was something fundamentally wrong with sciences understanding of the physics of the universe. Either there was a serious flaw in the laws of gravity or there was a great deal of unseen mass out there -- needed to explain observations of the apparent movement of galaxies in clusters. We now know that missing mass is Dark Matter.
*Military satellite launched on Delta IV rocket
One of the world’s most advanced military telecommunications satellites has been successfully launched into orbit. The eighth US Air Force Wideband Global Satcom system‘s satellite WGS-8 blasted into black skies aboard a United Launch Alliance Delta 4 rocket from Space Launch Complex 37B at the Cape Canaveral Air Force Base in Florida.
For Enhanced Show Notes, including photos to accompany this episode: http://www.bitesz.com/spacetime-show-notes
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#astronomy #space #science #technology #news #fastradiobursts #nasa #VeraRubin

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It's AAS Week here at Space Fan News. Six years ago this week I started SFN to report on the discoveries from the January AAS meeting. Here we are six years later still at it!
Links for this week:
Fast Radio Burst Discovered:
http://www.gemini.edu/node/12620
New Type Galaxy Found:
http://naturalsciences.org/calendar/news/researchers-get-first-look-at-new-extremely-rare-galaxy/
Cool YouTube Video on Burcin's Galaxy
https://youtu.be/F5ds04xtRdY
NASA Picks next solar system missions:
https://www.nasa.gov/press-release/nasa-selects-two-missions-to-explore-the-early-solar-system
JWST Resumes Testing:
https://www.nasa.gov/feature/goddard/2017/nasas-webb-telescope-to-resume-vibration-testing-in-january
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Are Aliens Saying Hello? Fast Radio Bursts Update 01/5/2017

The first update in my coverage of the phenomenon of Fast Radio Bursts or FRB's.
Links for the scientific papers mentioned in this video can be found at my blog. http://horizonfuture.blogspot.com/
Cylinder Three by Chris Zabriskie is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
Source: http://chriszabriskie.com/cylinders/
Artist: http://chriszabriskie.com/

Mysterious Fast Radio Burst's Extragalactic Host Pinpointed | Video

Since the first discovery of Fast Radio Bursts (FRB) in 2007, the phenomena has perplexed astronomers. To date, 18 FRBs have been detected but FRB 121102 (discovered in 2012) was the first to repeat itself. This gave astronomers the ability to observe it for a long period of time and determine its location - a dwarf galaxy that is 3 billion light-years from Earth. -- Full Story: https://goo.gl/XzXXZo
Credit: Gemini Observatory / Edited by Space.com's @SteveSpaleta http://www.twitter.com/stevespaleta

New clues about mysterious Fast Radio Bursts - SpaceTime with Stuart Gary S19E82

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Subscribe at all good podcatcher apps...including iTunes, Stitcher, audioBoom, Pocket Casts, Podbean, Google Play, Tunein etc.
*New clues about mysterious Fast Radio Bursts
Astronomers have detected a powerful blast of gamma ray energy coming from a mysterious event known as a Fast Radio Burst. The gamma ray event delivered over a billion times more energy in gamma-rays than in radio waves – there by rivalling the supernovae death of stars in their explosive power.
*The power of the force appears the same across the cosmos
A new study indicates that the strength of the electromagnetic force appears to be the same across the cosmos after all.
The new findings contradict earlier studies which appeared to show a difference in the strength of the electromagnetic force in different parts of the universe.
*A funnel on Mars could be a place to look for life
A strangely shaped depression on Mars could be a new place to look for signs of life on the Red Planet. A report in the journal Icarus claims the depression was probably formed by a volcano beneath a glacier and could have been a warm, chemical-rich environment well suited for microbial life.
For Enhanced Show Notes, including photos to accompany this episode: http://www.bitesz.com/spacetime-show-notes
NEW: The SpaceTime with Stuart Gary merchandise shop. Get your T-Shirts, Coffee Cups, badges, tote bag + more and help support the show. Check out the range: http://www.cafepress.com/spacetime Thank you.
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Fast Radio Bursts were puzzling physicist for quite some time. They were thought to be the result of large cataclysmic events such as supernovae, but this theory was proven wrong when it was discovered that they could repeat themselves. Now, we think that the rotation of young neutron stars may be the source of these intense energy bursts.
FURTHER READING:
https://en.wikipedia.org/wiki/Fast_radio_burst
_____________________
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CHALLENGE ANSWER 2:
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Astronomers Identify Repeating Radio Bursts For The First Time

A team of astronomers reported it has come upon 10 fast radio bursts that appear to come from both far away and a solitary source.
Ever since a radio burst coming from space was first identified 15 years ago, many astronomers have been searching for more, some hoping to detect repeat signals from the same entity.
While the latter sort of effort has not proven successful over the past decade and a half, that recently changed.
A team reported it has come upon 10 radio blips that appear to come from both far away and a solitary source.
The signals are technically called fast radio bursts, or FRBs and are often attributed to truly enormous cataclysms occurring in the universe, such as exploding stars.
As the object creating the burst is decimated in the process, it would explain why up until now only once-occurring signals have been detected.
However, the potential existence of repeat signals indicates that other source possibilities exist.
The team suspects the origin of the multiple signals may be, according to the CBC, “a rotating neutron star like a pulsar, but much farther away.”
It also suggests there could be different types of FRBs.

Host: Fraser Cain (@fcain)
Guests:
Kimberly Cartier (@AstroKimCartier )
Dave Dickinson (www.astroguyz.com / @astroguyz)
Jolene Creighton (fromquarkstoquasars.com / @futurism)
Nicole Gugliucci (cosmoquest.org / @noisyastronomer)
Their stories this week:
Mysterious Fast Radio Bursts Solve Missing Baryon Problem
Search Narrows for Planet Nine
WFIRST Unveiled
Double Shadow Transit Season Begins
Pulsar “Web” search for gravitational waves
Milky Way Survey of Gas and Dust Completed
Mars in 3 days? Hm.
Scott Kelly to return to Earth on March 1 – why was he in space for a year?
We’ve had an abundance of news stories for the past few months, and not enough time to get to them all. So we’ve started a new system. Instead of adding all of the stories to the spreadsheet each week, we are now using a tool called Trello to submit and vote on stories we would like to see covered each week, and then Fraser will be selecting the stories from there. Here is the link to the Trello WSH page (http://bit.ly/WSHVote), which you can see without logging in. If you’d like to vote, just create a login and help us decide what to cover!
We record the Weekly Space Hangout every Friday at 12:00 pm Pacific / 3:00 pm Eastern. You can watch us live on Google+, Universe Today, or the Universe Today YouTube page.
You can also join in the discussion between episodes over at our Weekly Space Hangout Crew group in G+!

Origin of mysterious space light found

For the first time ever, a fast radio burst (FRB) has been traced to its source location, a distant galaxy six billion light-years away.

Mysterious Radio Burst Tracked To Distant Galaxy

The cosmic activity known as fast radio bursts, or FRBs, have remained a mystery to astronomers, but a recent study by an international team of researchers provides some startling insights into the phenomenon.
The cosmic activity known as fast radio bursts, or FRBs, have remained a mystery to astronomers, but a recent study provides some startling insights into the phenomenon.
FRBs are flashes of radio signals that are typically over in milliseconds; before this paper, only 16 had been identified.
Because these events are fast, rare, and usually detected years after they happen, a team created an alert to go off should such activity be detected by Australia’s Parkes Radio Telescope.
An FRB occurred on April 18th, and, based on the collected data, scientists were able to determine that it came from an elliptical galaxy around 6 billion light years away.
This galaxy is known to be old which discounts the theory that these bursts originate from young pulsars.
Instead, as one of the authors has stated, “It might mean that the FRB results from, say, two neutron stars colliding rather than anything to do with recent star birth.”

Mysterious Cosmic Radio Waves

For almost 10 years, astronomers have been trying to track down the source of mysterious cosmic radiowaves called Fast Radio Bursts (FRBs), which are brighter than our Sun, packed with energy, and flash across the Universe in random directions thousands of times a day.
http://sostrenews.com/study-finds-mysterious-cosmic-radio-waves-could-have-come-from-a-starquake/
http://www.wochit.com
This video was produced by YT Wochit News using http://wochit.com

Where Are Mysterious Radio Waves In Space Coming From?

A few years ago, strange radio waves were being picked up from deep within outer space! Where are they coming from? Join Laci as she discusses a few possible logical explanations for radio waves in space.
Follow DNews on Twitter: http://www.twitter.com/dnews
Follow Laci on Twitter: http://www.twitter.com/gogreen18
Read More:
Fast Radio Burst Discovered In The Arecibo Pulsar Alfa Survey
http://iopscience.iop.org/0004-637X/790/2/101
"Recent work has exploited pulsar survey data to identify temporally isolated, millisecond-duration radio bursts with large dispersion measures (DMs)."
Mysterious Radio Burst Detected From Deep Space but Scientists Have 'No Handle on What They Are'
http://www.theblaze.com/stories/2014/07/11/mysterious-radio-burst-detected-from-deep-space-but-scientists-have-no-handle-on-what-they-are/
"It was only a split-second burst of radio waves, but what a radio telescope in Puerto Rico detected has scientists excited about pulses that seem to be originating in deep space."
More Puzzling Radio Bursts From Deep Space
http://www.futurity.org/radio-bursts-deep-space-730642/
"Astronomers have detected very fast bursts of radio waves coming from deep in outer space and they don't know the source."
Watch More:
Saturn's Hexagon Explained
https://www.youtube.com/watch?v=61mdtQDl9k8
TestTube Wild Card
http://testtube.com/dnews/dnews-382-what-ancient-wine-tasted-like?utm_source=YT&utm_medium=DNews&utm_campaign=DNWC
Why the Moon Has 2 Sides
https://www.youtube.com/watch?v=GW2fU1uxwQY
____________________
DNews is dedicated to satisfying your curiosity and to bringing you mind-bending stories & perspectives you won't find anywhere else! New videos twice daily.
Watch More DNews on TestTube http://testtube.com/dnews
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A Population of Fast Radio Bursts at Cosmological Distances

This narrated video describes the discovery of a new population of radio bursts that appear to come from cosmological distances that was published today in Science. The bursts offer a new way to count the number of atoms in the Universe and have mysterious origins.

NASA | Fermi Finds Radio Bursts from Terrestrial Gamma-ray Flashes

Lightning in the clouds is directly linked to events that produce some of the highest-energy light naturally made on Earth: terrestrial gamma-ray flashes (TGFs). An instrument aboard NASA's Fermi Gamma-ray Space Telescope was recently fine-tuned to better catch TGFs, and this allowed scientists to discover that TGFs emit radio waves, too.
This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/goto?11131
Like our videos? Subscribe to NASA's Goddard Shorts HD podcast:
http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html
Or find NASA Goddard Space Flight Center on Facebook:
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Or find us on Twitter:
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Is Dark Energy Getting Stronger?

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The power of Dark Energy may be increasing as the universe ages. Subtle clues are emerging that the accepted model for the nature of dark energy and dark matter may not be all that. We saw the first such clue recently in our recent episode on the Crisis in Cosmology. Today we’re doing a Space Time Journal Club to reveal another clue. We’re looking at a new paper in Nature Astronomy, “Cosmological constraints from the Hubble diagram of quasars at high redshifts” by Risaliti and Lusso. It hints that the cosmological constant may not be so constant after all. In fact it may be increasing. If this is true, then our prediction for the future of our universe looks VERY different, and may involve the entire universe tearing itself to shreds at the subatomic level in the Big Rip.
On this edition of Space Time Journal Club we look at:
Risaliti & Lusso (2019) "Cosmological Constraints from the Hubble Diagram of Quasars at High Redshifts"
https://www.nature.com/articles/s41550-018-0657-z
#darkenergy #darkmatter #spacetime
More about The Great Courses Plus:
The Great Courses Plus is currently available to watch through a web browser to almost anyone in the world and optimized for the US, UK, and Australian markets. The Great Courses Plus is currently working to both optimize the product globally and accept credit card payments globally.
Learn More About Dark Energy Here:
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Hosted by Matt O'Dowd
Written by Matt O'Dowd
Graphics by Aaron Halevy
Directing by Andrew Kornhaber
Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters:
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Hypernova:
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سلطان الخليفي

NASA ScienceCasts: A Super Start to 2019

2019 is an excellent year to look to the sky and enjoy the spectacular view of Earth’s nearest neighbor, the Moon.
NASA Science: http://science.nasa.gov/

Do black holes contain dark matter?

Black holes grow by accreting matter under gravity; so surely they should be able to accrete dark matter? So then is there loads of dark matter trapped inside black holes?
Turns out it's a bit more complicated than that because of what we know of how dark matter behaves - which isn't a lot! - but it's enough.
This was a really fun speculative question to think about, especially because it ties in with my PhD thesis too. Let me know if you want me to do a video describing my thesis down in the comments.
Both my lapel microphones ran out of battery this week. Thankfully one of them didn't need a battery to use with a smartphone, so the sound was recorded that way. It's not brilliant I know, but it'll do. My research schedule this week stopped me from delaying filming until I could get a battery. The sound suffered so science wouldn't.
iIf you have questions you want me to answer either tweet them to me (https://twitter.com/drbecky_) or leave them in the comments below. I'm more likely to see stuff on Twitter!
Please subscribe if you haven't already and click the little bell icon to be notified when I post a new video!
My sister made the frame in the background as a present when I passed my PhD. She does commissions: https://megansmethurstdesign.wordpress.com/work/
I also present videos on Sixty Symbols: https://www.youtube.com/user/sixtysymbols
and Deep Sky Videos: https://www.youtube.com/user/DeepSkyVideos
------
Dr. Becky Smethurst is a Junior Research Fellow at Christ Church at the University of Oxford.
Twitter: https://twitter.com/drbecky_
http://drbecky.uk.com

Space Weather News | A Filament Sandwiched by Sunspots 03.20.2019

UPDATE: Part of the filament I talk about did erupt after I posted this video! We could have a part-Earth directed solar storm coming by the end of this week! Check my twitter feed for the latest on arrival time!
Original Video Description:
This week we are coming down from a solar storm from some fast solar wind, but that doesn't mean the fun is over! We have two fast-growing sunspots on the Earth-facing Sun and they are sandwiching a filament that is growing more unstable by the day. If this filament erupts within the next day or so, we could have an Earth-directed solar storm! We are keeping a close watch on this to be sure. Also, one of the new sunspots may be showing signs of an influence of solar cycle 25. Just like the previous rogue sunspot we saw a few weeks ago, this new region has a dominant magnetic signature that runs north-south instead of east-west. Its too early to tell what the final polarity of this region will be, but if it continues this way, it will be yet another signal that solar cycle 25 is closer than we think! Learn the details of this filament sandwich, get the scoop on the two new sunspots that may cause its launch, and see what else our Sun has in store for us this week!
To get early access to my forecasts plus more visit:
http://patreon.com/SpaceWeatherWoman
For daily and often hourly updates (during active times) visit me on Twitter:
https://twitter.com/TamithaSkov
For a more in-depth look at the data and images highlighted in this video see these links below.
Solar Imaging and Analysis:
SDO: http://sdo.gsfc.nasa.gov/data/
Helioviewer: http://www.helioviewer.org/
Flare Analysis: http://www.lmsal.com/solarsoft/latest_events/
Computer Aided CME Tracking CACTUS: http://www.sidc.oma.be/cactus/out/latestCMEs.html
GOES Xray: http://www.swpc.noaa.gov/rt_plots/xray_1m.html
SOHO: http://sohodata.nascom.nasa.gov/
Stereo: http://stereo.gsfc.nasa.gov/
GONG magnetic field synoptic movie: https://gong.nso.edu/data/magmap/standard_movie.html
GONG magnetic field synoptic charts: http://gong.nso.edu/data/magmap/
LMSAL Heliophysics Events HEK http://www.lmsal.com/isolsearch
Solar Wind:
DISCOVR solar wind: http://www.swpc.noaa.gov/products/real-time-solar-wind
ACE Solar Wind: http://www.swpc.noaa.gov/products/ace-real-time-solar-wind
NASA ENLIL SPIRAL: https://iswa.gsfc.nasa.gov/IswaSystemWebApp/iSWACygnetStreamer?timestamp=2038-01-23+00%3A44%3A00&window=-1&cygnetId=261
NOAA ENLIL SPIRAL: http://www.swpc.noaa.gov/products/wsa-enlil-solar-wind-prediction
Magnetosphere, Ionosphere, Atmosphere:
GOES Magnetometer: http://www.swpc.noaa.gov/products/goes-magnetometer
Ionosphere D-Region Absorption (DRAP) model: http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap/
Auroral Oval Ovation Products: http://www.swpc.noaa.gov/products/aurora-30-minute-forecast
Global 3-hr Kp index: http://www.swpc.noaa.gov/products/planetary-k-index
Wing Kp index prediction: http://www.swpc.noaa.gov/products/wing-kp
USGS Ground Magnetometers: http://geomag.usgs.gov/realtime/
USGS Disturbance Storm-Time (Dst): http://geomag.usgs.gov/realtime/dst/
NAIRAS Radiation Storm Model: http://sol.spacenvironment.net/raps_ops/current_files/globeView.html
Multi-Purpose Space Environment Sites:
NOAA/SWPC: http://www.swpc.noaa.gov
SOLARHAM: http://www.solarham.net/index.htm
Spaceweather: http://spaceweather.com
iSWA: http://iswa.gsfc.nasa.gov/iswa/iSWA.html
Definition of Geomagnetic Storm, Radiation Storm, and Radio Blackout Levels:
http://www.swpc.noaa.gov/NOAAscales/
None of this would be possible without the hard work and dedication of those who have provided all of this data for public use.
Images c/o NASA/ESA/CSA (most notably the superb SDO, SOHO, ACE, STEREO, CCMC, JPL & DSN teams, amazing professionals, hobbyists, institutions, organizations, agencies and amateurs such as those at the USAF/HAARP, NICT, NOAA, USGS, Environment Canada, Natural Resources Canada, Intellicast, Catatania, rice.edu, wisc.edu, sonoma.edu ucalgary.ca, rssi.ru, ohio-state.edu, solen.info, and more. Thanks for making Space Weather part of our every day dialogue.

HiClip: In the Gullies and Bedrock of Ius Chasma (Mars)

This image was acquired in Ius Chasma, a major section of the giant Valles Marineris trough.
(Audio: www.tregibbs.com. Black and white images are 5 km across; enhanced color images are 1 km. For images with scale bars, refer to the link below.)
NASA/JPL/University of Arizona
https://uahirise.org/ESP_058580_1720

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